loops

问题 Assume you have some function function in Python that works by looping: for example it could be a function that evaluates a certain mathematical expression, e.g. x**2 , for all elements from an array, e.g. ([1, 2, ..., 100]) (obviously this is a toy example). Would it be possible to write a code such that, each time function goes through a loop and obtains a result, some code is executed, e.g. print("Loop %s has been executed" % i) ? So, in our example, when x**1 has been computed, the

问题 Environment: Matplotlib v2.2.2 Code: import numpy as np import matplotlib.pyplot as plt import matplotlib.animation as animation from matplotlib.animation import PillowWriter fig = plt.figure() def f(x, y): return np.sin(x) + np.cos(y) x = np.linspace(0, 2 * np.pi, 120) y = np.linspace(0, 2 * np.pi, 100).reshape(-1, 1) # ims is a list of lists, each row is a list of artists to draw in the # current frame; here we are just animating one artist, the image, in # each frame ims = [] for i in

问题 Environment: Matplotlib v2.2.2 Code: import numpy as np import matplotlib.pyplot as plt import matplotlib.animation as animation from matplotlib.animation import PillowWriter fig = plt.figure() def f(x, y): return np.sin(x) + np.cos(y) x = np.linspace(0, 2 * np.pi, 120) y = np.linspace(0, 2 * np.pi, 100).reshape(-1, 1) # ims is a list of lists, each row is a list of artists to draw in the # current frame; here we are just animating one artist, the image, in # each frame ims = [] for i in

问题 I have a nested loop with 60 dimensions, i.e. I nest 60 loops into each other. In Stata the MWE would look like the following: forvalues i = 1/60 { forvalues j = 1/60 { forvalues k = 1/60 { forvalues l = 1/60 { ... imagine the 56 remaining loops here } } } } The equivalent in R is: for(i in 1:60) { for(j in 1:60) { for(k in 1:60) { for(l in 1:60) { ... imagine the 56 remaining loops here } } } } The objective here is to avoid typing all 60 levels into my code and create a loop for the loop

问题 I have a nested loop with 60 dimensions, i.e. I nest 60 loops into each other. In Stata the MWE would look like the following: forvalues i = 1/60 { forvalues j = 1/60 { forvalues k = 1/60 { forvalues l = 1/60 { ... imagine the 56 remaining loops here } } } } The equivalent in R is: for(i in 1:60) { for(j in 1:60) { for(k in 1:60) { for(l in 1:60) { ... imagine the 56 remaining loops here } } } } The objective here is to avoid typing all 60 levels into my code and create a loop for the loop

问题 I have a list of values which I would like to use as names for separate tables scraped from separate URLs on a certain website. > Fac_table [[1]] [1] "fulltime_fac_table" [[2]] [1] "parttime_fac_table" [[3]] [1] "honorary_fac_table" [[4]] [1] "retired_fac_table" I would like to loop through the list to automatically generate 4 tables with the respective names. The result should look like this: > fulltime_fac_table 職稱 V1 "教授兼系主任" V2 "教授" V3 "教授" V4 "教授" V5 "特聘教授" > parttime_fac_table 職稱 姓名 V1

问题 I have a list of values which I would like to use as names for separate tables scraped from separate URLs on a certain website. > Fac_table [[1]] [1] "fulltime_fac_table" [[2]] [1] "parttime_fac_table" [[3]] [1] "honorary_fac_table" [[4]] [1] "retired_fac_table" I would like to loop through the list to automatically generate 4 tables with the respective names. The result should look like this: > fulltime_fac_table 職稱 V1 "教授兼系主任" V2 "教授" V3 "教授" V4 "教授" V5 "特聘教授" > parttime_fac_table 職稱 姓名 V1

问题 I'm creating a simple game and I'd like to repaint the board after every move. So, after I call move(), what I would like to do is this: (by the way, a View is a JComponent that holds pieces; since the number of pieces has changed after the move, it needs to be repainted) for(View v : views){ v.repaint(); } It's not working. When I call repaint() on a single View, it works fine. I tried using paintImmediately , and revalidate , and update ... nothing works within the loop. Any ideas? Thanks

问题 I'm creating a simple game and I'd like to repaint the board after every move. So, after I call move(), what I would like to do is this: (by the way, a View is a JComponent that holds pieces; since the number of pieces has changed after the move, it needs to be repainted) for(View v : views){ v.repaint(); } It's not working. When I call repaint() on a single View, it works fine. I tried using paintImmediately , and revalidate , and update ... nothing works within the loop. Any ideas? Thanks

问题 I'm having troubles accessing the objects displayed in the TableColumn Here's the code snippet where I set the graphics of one Column. Only want to show the Name of the Person object: (Any better/easier way in doing that is welcome) ownerColumn .setCellFactory(new Callback<TableColumn<Site, Person>, TableCell<Site, Person>>() { @Override public TableCell<Site, Person> call( TableColumn<Site, Person> param) { TableCell<Site, Person> ownerCell = new TableCell<Site, Person>() { @Override